if (document.images) {            // Active Images

            aboutaampson = new Image();
            aboutaampson.src = "/_img/1_aboutaamps.jpg";
            contacton = new Image();
            contacton.src = "/_img/1_contact.jpg";
            downloadson = new Image();
            downloadson.src = "/_img/1_downloads.jpg";
            fellowshipson = new Image();
            fellowshipson.src = "/_img/1_fellowships.jpg";
            homeon = new Image();
            homeon.src = "/_img/1_home.jpg";
            linkson = new Image();
            linkson.src = "/_img/1_links.jpg";
            memberon = new Image();
            memberon.src = "/_img/1_member.jpg";
            membershipon = new Image();
            membershipon.src = "/_img/1_membership.jpg";
            monographson = new Image();
            monographson.src = "/_img/1_monographs.jpg";
            newson = new Image();
            newson.src = "/_img/1_news.jpg";
            projectson = new Image();
            projectson.src = "/_img/1_projects.jpg";
            pressnewson = new Image();
            pressnewson.src = "/_img/1_pressnews.jpg";
            sponsorson = new Image();
            sponsorson.src = "/_img/1_sponsors.jpg";
            structureon = new Image();
            structureon.src = "/_img/1_structure.jpg";

            aboutaampsoff = new Image();
            aboutaampsoff.src = "/_img/0_aboutaamps.jpg";
            contactoff = new Image();
            contactoff.src = "/_img/0_contact.jpg";
            downloadsoff = new Image();
            downloadsoff.src = "/_img/0_downloads.jpg";
            fellowshipsoff = new Image();
            fellowshipsoff.src = "/_img/0_fellowships.jpg";
            homeoff = new Image();
            homeoff.src = "/_img/0_home.jpg";
            linksoff = new Image();
            linksoff.src = "/_img/0_links.jpg";
            memberoff = new Image();
            memberoff.src = "/_img/0_member.jpg";
            membershipoff = new Image();
            membershipoff.src = "/_img/0_membership.jpg";
            monographsoff = new Image();
            monographsoff.src = "/_img/0_monographs.jpg";
            newsoff = new Image();
            newsoff.src = "/_img/0_news.jpg";
            pressnewsoff = new Image();
            pressnewsoff.src = "/_img/0_pressnews.jpg";
            projectsoff = new Image();
            projectsoff.src = "/_img/0_projects.jpg";
            sponsorsoff = new Image();
            sponsorsoff.src = "/_img/0_sponsors.jpg";
            structureoff = new Image();
            structureoff.src = "/_img/0_structure.jpg";

        }

// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}